While this site has participated in Doors Open Ontario in the past, it may not be part of the current season’s program. Please check the Home page for this year’s events and participating sites. For Toronto and Ottawa, check their local websites to confirm.

Quatrefoilin-person Doors Open Hamilton Region


  • In-person
  • 2024 theme: Adaptive reuse
  • Food vendors
  • Parking
  • Partial wheelchair access

The John Cowper House was home to a succession of prominent Dundas families. John Cowper was a furniture maker, and his son Willoughby had the first telephone in Dundas. The building is designated, and the current owners have turned it into a restaurant, which was voted in 2010 by EnRoute Magazine as one of Canada’s Top Ten Best New Restaurants.

Contact info

16 Sydenham Street
Dundas, Ontario
E-mail: quatrefoilrestaurant@gmail.com


Year built: 1860
Building type:Food and drink
Architectural style:Gothic revival

Dates/hours open

May 06, 10:00am - May 06, 04:00pm

Saturday only: 10 a.m. to 4 p.m.